Mockserver runs on your own machine — the client starts it, so there is no endpoint to ping. Last commit 18 Sep 2026.
Mock, record/replay, verify and chaos-test any HTTP, REST, gRPC or LLM dependency over MCP.
What the code does
We read the source, 23 h ago · rules 3dff92dd89df
What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.
system(juice_cmd)
path = os.path.join(data_dir, name)
<button id="button_chaos_connection_drop" class="accordion">drop ~50% of connections without a response</button>
tarProcess.Start();
$process = proc_open(
result = subprocess.run(
ProcessBuilder processBuilder = new ProcessBuilder(command);
Object readObject = pemParser.readObject();
--privileged \
"base64Bytes": "iVBORw0KGgoAAAANSUhEUgAAAqwAAAApCAIAAAB/QuwlAAAK+GlDQ1BJQ0MgUHJvZmlsZQAASA2tl3dcU8kWx+fe9EYLICAl9CZIr9JrAAXpYCMkgYQSYgoCVpTFFVwLKiKgrugiiIJrAWQtiAULoljAvkEWFXVdLIiKypvAEvfzPm//e5PP3Pne35w598zcmXzOBYBGZQmFWagKANkCiSg6xJ+RmJTMIDwGWKAF8EAf2LHYYqFfVFQE+Nfy…
# run MockServer as root USER root # -XX:MaxRAMPercentage=75.0 caps the JVM heap at 75% of the container memory limit so the # in-memory request/expectation rings size off a bounded heap. It only applies when the user has # NOT set an explicit heap, so it is a safe default. To …
Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.
This code can reach further than it looks
We found places where it runs commands, builds paths or queries from values it is given. None of that is a flaw by itself — it becomes one when the code changes, and code changes quietly between releases. We re-read it on every one.
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Mockserver — questions
Answers built from our own checks of this server.